Running Manjaro XFCE.
I would like to map the right Alt key to Ctrl+Alt so I can use RightAlt+[key] in keyboard shortcuts globally where a shortcut is set as Ctrl+Alt+[key]. If I set a combo in the keyboard settings app, e.g. RightAlt+T for te terminal, it also maps the command to LeftAlt+T which I don't want.
I don't want to set each combination manually, but have Right Alt always behave like Ctrl+Alt in any key combination. Left Alt should keep its normal behavior.